ROUTE 3 CONTRACTORS CONSORTIUM ROUTE 3 Tal LAM
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ROUTE 3 CONTRACTORS CONSORTIUM r l r ROUTE 3 TAl LAM TUNNEL & YUEN LONG , . APPROACH - SOUTHERN SECTION I .J FINAL DETAILED ENVIRONMENTAL IMPACT ASSESSMENT Executive Summary [ August 1995 [ r .. r '; [. ~ l , CONSULTANTS IN l ' ENVIRONMENTAL I S CIENCES (ASIA) LTD .• j Room 1201, Tai Yau Building 181 Johnston Road, Wanchai, Hong Kong Telephone: (852) 2893 1551 Facsimile: (852) 2891 0305 : .'-' J ' \ L o [I 'I] i.nr :':'L~ QUALITY ASSURANCE o POLICY STATEMENT Consultants in Environmental Sciences (Asia) Ltd is committed to satisfying the requirements of its Clients at the highest" standards of professional ethics. It is the Company's objective to provide services which meet the required specification and are produced on time in a cost-effective manner. In pursuit of these objectives, the Directors have implemented Quality Systems based on ISO 9001 standard. All employees of the Company have a responsibility for quality. The quality procedures are under continual review by senior Management to ensure that the changing needs of the Company's Clients are met. u ,,0 ' .. n [j f! •...[ .. :. : ! '. f: .1 CONSULTANTS IN [ ENVIRON MENTAL [; I S CIENCES (ASIA) LTD [ CES (ASIA) LTD DOCUMENT RELEASE FORM [1 TITLE Route 3 Tai Lam Tunnel & Yuen Long Approach - Southern Section FDEIA - Executive Summary T1 , [ i--"- CLIENT Route 3 Contractors Consortium REPORT NO. 721 PROJECT NO. 96530 STATUS Final DATE OF ISSUE 16/8/95 QUALITY CONTROL NAME SIGNATURE DATE CHECKED BY EChan ~ Ib,J-;r· TECHNICAL REVIEWER P Kreuse.' fvu,(®&t.l Ib-~·9r APPROVED BY T J Cramp --- rf.J-~ /& /&/1(" REMARKS : The information supplied and contained within this report is, to the best of our knowledge, correct at the time of printing. Where information . -has been supplied by third parties, such information is reproduced here in good faith. CES (Asia) Ltd accepts no responsibility for changes made to this report by third parties., [J ---_ ,i [ .,'i;:.-~ [J r [i CONTENTS Page [, BACKGROUND 1 [ 1 INIRODUCTION 1 2 OBJECTIVES 2 3 THE PROjEcr 2 [j 4 THE DEIA STUDY AREA 3 5 KEY ISSUES 3 [ '".;;71 THE MAIN LINE 7 '1 6 NorSE 7 [ -::; 7 Air Quality 7 8 WATER QUALITY 7 9 ECOLOGY 8 10 VISUAL AND LANDSCAPE 9 11 WASTE MANAGEMENT' 9 THE CONVEYOR SYSTEM 10 12 DESIGN FEATURES 10 13 OPERATIONAL DATA 10 14ArR QUALITY 10 15 NorSE 10 16 WATER QUALITY 11 17 LANDSCAPE AND VISUAL IMP Acr 11 18 ECOLOGY 11 ENVffiONMENTALMOMTORINGANDAUDIT 13 19 ORGANISATION 13 20 TRIGGER, ACTION AND TARGET LEVELS 13 21 ENVIRONMENTAL MONITORING AND AUDIT 13 22 POLLUTION CONIROL REQUIREMENTS 13 23 IMPAcr PREDICTION REVIEW 13 24 REPORTING 13 25 ENVIRONMENTAL COMPLAINTS RESPONSE . 13 26 ENVIRONMENTAL COMMITMENT OF mE CON1RAcroR 13 .. LIST OF FIGURES . , [ ,-_-:.J Figure 1 Design Refinements 5 Figure 2 TLT & YLA tSouth) Study Area 6 .•. '.•.. '1. [ . [, [U [J r [: .' 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[' [' [ "~ '", .~ ~ [ -~,,;," • .;!I "" , : [ ," ; -... 1 [, [, [; c..; ' 1 [ ~'.. __ J L_' [- :i Executive Summary - Southern Section DEIA 0J ' Route 3 Contractors Consortium Route 3 Tai Lam Tunnel and Yuen Long Approach BACKGROUND 1) reinstate portions of fishponds remaining within the construction boundaries to their original 1 INTRODUCTION condition including water quality and suitable enhancements to improve their ecological value; Route 3 Tal Lam Tunnel and Yuen Long Approach (R3 TLT & YLA) is an integral part of a transport 2) prepare a Detailed Environmental Impact network to selVe the new airport at Chek Lap Kok Assessment (DEIA) report to verify the findings of and the proposed container terminals 10 and 11 on the PDS2EA and detail the environmental impacts Lantau Island An Environmental Assessment study of the Construction Proposal; for the R3 TLT & YLA (including the conveyor system under a separate cover, the EACS) Preliminary Design 3) complete the four-season ecological sUlVey as Stage 2 was completed in March 1994, hereafter required by the ACE; referred to as the PDS2EA The study was conditionally recommended for endorsement by the 4) address key environmental issues described in Advisory Council on the Environment (ACE) EIA Gause 10.2 of the Construction Requirements; Subcommittee on 5 July 1994 and was subsequently endorsed by the full ACE , subject to conditions given 5) carry out off-site compensatory planting of native in the table below. woodlands affected by the works; The Hong Kong Government has awarded this project 6) develop and implement a comprehenSive to a franchisee, Route 3 (CPS) Company Limited, that Environmental Monitoring and Audit programme has delegated responsibilities for design and to quantify the impact predictions in the DEIA '--5 construction to. Route 3 Contractors Consortium and, if required, act to remedy any nOn (R3CC). Appendix 5 Part 1 of the Project Agreement conformances with relevant environmental n gives Construction ReqUirements containing standards, specificatioIlS on environmental matters. These [ include commitments for R3CC to: I i l __ i~·''; Temporary access to avoid wetland R3CC will take note of this recommendation in proposing habitats and SSSI at Ho Pui, Provision temporary access. of wildlife corridors Additional ecological sUlVey before Supplementary SUlVeys were carried out from late August 1994 commencement of work. through January 1995 by Highways Department. R3CC will undertake the continuation of this sUlVey and complete it in June 1995 with reporting at the end. Off-site compensatory planting at a R3CC will undertake the compensatory planting. ratio of no less than 3:1 " ; The final EIA to be submitted to ACE R3CC will submit the Detailed EIA to ACE for consultation, i.' .~ for consultation. U:'---" Off-site restoration of wetland, Highways believe that off-site restoration of wetland is not viable in this project. R3CC wi)! however reinstate areas of ponds within the work site which are not required as part of construction, operation and maintenance of the permanent works. 01 :j '.'.',' CES (Asia) Ltd 1 [ , 96530lreports'deia-sles-sdeia.d07 \' L Executive Summary - Southern Section DEIA Route 3 Contractors Consortium Route 3 Tai Lam Tunnel and Yuen Long Approach [ Two Information Papers, one on the environmental • to address any outstanding issues from the impacts of the preliminary works during the first 6 PDS2EA related to the refinement of impact o months of the project and the other on the mitigation measures; and environmental impacts of the Conveyor System, have • to assess the environmental impacts of any been presented to ACE by R3CC. Both have been changes between the current Construction endorsed by ACE with the following conditions on Proposals and the project design used as a basis the Conveyor System Information Paper: for the PDS2EA. 1) all mitigation measures listed on page 14 of the 3 THE PROJECT Information Paper be adopted with the exception of enclosing the discharge points and the 3.1 The Main Line stockpile; The R3 TLT & YLA comprises the northern section of 2) additional quietened equipment be deployed Route 3 from Tuen Mun Road in the south to Au Tau during construction and/or noise barriers be used (near Yuen Long) in the north. The south where necessary to ensure daytime criterion of 75 interchange will connect to the northern end of the dB(A) is met; TIng Kau Bridge and Tuen Mun Road. The north interchange will connect to the New Territories 3) extremely loud equipment shouid not be .used in Circular Road and the Yuen Long Southern Bypass. the evening or night hours; The road will be a 12 km long fully graded divided 4) noise reduction measures for tugboats or strict dual 3-lane highway providing a direct link from the controls on their use be applied; North West New Territories and the border crossing at Lok Ma Chau through to Tsueri Wan, Kwai Chung, 5) litter and debris arising rrom' the ~proJiicr'be, Lantau, the West Kowloon Corridor and Hong Kong [] cleared frequently and the jetty reinstated as soon '. Island. It will include a 6.3 km stretch of the elevated as possible; and· Yuen Long Approach Road and a 3.8 km Tai Lam Tunnel. The Tai Lam Tunnel will consist of two •.... '["".1 I 6) a summary of the habiiit- 'i';ss mitigation separate 3-lane road tunnels and ventilation tunnels proposals for the project be included in the from the portals to the quarter points of the road Southern Section DEIA to be submitted to ACE. tunnels. Ventilation plant buildings will be located at both portal areas. [1 2 OBJECTIVES Situated 1.5 km north of the Tai Lam Tunnel northern This Executive Summary highlights the findings and portal, there will be a 22-lane Toll Plaza and an recommendations of the DEIA for the Southern Administration Building to accommodate the Central n Section of R3 TL T & YLA and describes the Monitoring and (Traffic) Control System. At the Toll Environmental Monitoring and Audit (EM&A) Plaza, sliproads will connect the main roadway to programme. The DEIA consists of 3 volumes and the Kam Sheung Road to the east. :11 readers should refer to them for technical details: 3.2 The Conveyor System • Volume 1: The Main Line • Volume 2: The Conveyor System The preliminary design identified the need to remove n • Volume 3: Environmental Monitorlng and Audit approximately 6 Mm' of excavated spoil material Manual when constructing the Tai Lam Tunnel and the TIn Kau Interchange. A conveyor system was deemed to As specified in the Construction ReqUirements, the be the most practical and environmentally acceptable objectives of the DEIA are: method for transporting the material to a barge loading area. The amended design proposed by R3CC o • to verify the findings of the PDS2EA; has reduced the estimated quantity to 4.5 Mm'. • to assess in detail the environmental impacts of the Construction Proposals; The conveyor system will be installed along the hillsides and coastal area.